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der richter
23 lines
652 B
Lua
23 lines
652 B
Lua
local function lux_to_gamma(lmin, lmax, rmin, rmax, lux)
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if lmax <= lmin or lux == 0 then
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return 1
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end
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local num = (rmax - rmin) * (math.log(lux, 10) - math.log(lmin, 10))
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local den = math.log(lmax, 10) - math.log(lmin, 10)
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local result = num / den + rmin
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-- clamp the result
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local max = math.max(rmax, rmin)
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local min = math.min(rmax, rmin)
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return math.max(math.min(result, max), min)
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end
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local function lux_changed(_, lux)
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local gamma = lux_to_gamma(16.0, 256.0, 1.0, 1.2, lux or 0)
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mp.set_property_number("gamma-factor", gamma)
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end
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mp.observe_property("ambient-light", "number", lux_changed)
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